Untriggered GBM Short GRB Candidates

This webpage lists candidate short gamma-ray bursts found by an automatic
on-ground search of the Fermi GBM Continuous Time-Tagged Event (CTTE) datatype.
Short gamma-ray bursts found onboard and all other GBM triggers are not included
in this list.
For on-board triggers, please see the table at the Fermi Science Support Center.

The GBM CTTE data product provides data on each photon or other particle processed by any
GBM detector with 2 microsecond resolution and 128 channel energy
resolution. Short GRB candidates on this webpage are found by binning the data into four
different energy ranges and ten timescales from 0.1 to 2.8 seconds and
testing for significant rate increases in two or more detectors.
Several tests are applied, including removing soft and long transients.
Candidates will be posted automatically without human vetting and some
may not be short GRBs. Please contact
Michael S. Briggs
for further information.

The quantities listed in the following table are:

"MET" is GBM Mission Elapsed time

Reliability ranges from: Low, the sample contains some statistical fluctuations; Medium: highly significant; High: confirmed by signal in one or more GBM detectors in addition to the two "discovery" detectors.

The date and time are in UTC.

Location in degrees are equatorial coordinates of the candidate GRBs with respect to epoch J2000.

The error on the localization is the 68% confidence level statistical uncertainty. There is
an additional systematic error of a few degrees.

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